logger for multi threaded multi class application

[glen croteau]

Hello,

I have a multi threaded multi class application. I wish to write thread safe output to the console.
i have added a logger and set its level for each class.
I can set the formatter for each class also, however I would like to know if I can set the formatter once at a lower level instead of in each class.

		private final static Logger logger = Logger.getLogger(MyClass.class.getName());
		.....
		java.util.logging.ConsoleHandler consoleHandler = new java.util.logging.ConsoleHandler();
		consoleHandler.setFormatter(new CustomLogFormatter());
		logger.addHandler(consoleHandler);
		logger.info("Info Log");
 

This seems a bit much to do in each class. I would like to keep it simple. Even a config file which could be programmatically loaded at start up woudl be good.

Thanks

[Campbell Ritchie]

Too difficult a question for "beginning". Moving thread.

[glen croteau]

Hello,

I am now setting the formatter on the default logger and this appears to work.
now i would like to move this to a config file as stated above.

In each class I call a static setup method which handles the config. is there a cleaner solution?

	static public void setup(Logger logger, String className) {
		if(className.equals("A")){
			logger.setLevel(DEBUG_LEVEL_A_ClASS);
		}
		else if(className.equals("B")){
			logger.setLevel(DEBUG_LEVEL_B_CLASS);
		}

		// Add ConsoleHandler to Logger.
		Logger defaultLogger = Logger.getLogger("");
		for(Handler h : defaultLogger.getHandlers()) {
			h.setFormatter(new CustomFormatter());
		}
 

[Rob Spoor]

Please UseCodeTags. You can edit your post to add them.

[Hebert Coelho]

glen croteau wrote:Hello,

I am now setting the formatter on the default logger and this appears to work.
now i would like to move this to a config file as stated above.

In each class I call a static setup method which handles the config. is there a cleaner solution?

	static public void setup(Logger logger, String className) {
		if(className.equals("A")){
			logger.setLevel(DEBUG_LEVEL_A_ClASS);
		}
		else if(className.equals("B")){
			logger.setLevel(DEBUG_LEVEL_B_CLASS);
		}

		// Add ConsoleHandler to Logger.
		Logger defaultLogger = Logger.getLogger("");
		for(Handler h : defaultLogger.getHandlers()) {
			h.setFormatter(new CustomFormatter());
		}
 

If your classes names are really "A" ou "B", you could name it "DEBUG_LEVEL_B_CLASS" and then logger.setLevel(className).

And if its not, you might create a method do encapsulate that if sequence.